@[sansesantongshun](/user/866613) 你建树呢qwq
by zhangxiao666 @ 2024-02-07 13:00:23
@[sansesantongshun](/user/866613) 而且最好别用 unsigned long long，容易被卡，建议找大质数为模数
by zhangxiao666 @ 2024-02-07 13:00:53
@[zhangxiao666](/user/742017) Thanks,You are Tarjan
by sansesantongshun @ 2024-02-07 19:07:20